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Commit ce2deca2 authored by Tony Lindgren's avatar Tony Lindgren
Browse files

ARM: OMAP: Fix SRAM to use MT_MEMORY instead of MT_DEVICE 



MT_MEMORY is needed in order to execute code in SRAM. Also
need to use section mapping.

Based on a patch by Richard Woodruff.

Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 83379c81

arch/arm/plat-omap/sram.c

+3 −6
Original line number Diff line number Diff line
@@ -158,14 +158,12 @@ static struct map_desc omap_sram_io_desc[] __initdata = { 
	{	/* .length gets filled in at runtime */

		.virtual	= OMAP1_SRAM_VA,

		.pfn		= __phys_to_pfn(OMAP1_SRAM_PA),

		.type		= MT_DEVICE

		.type		= MT_MEMORY

	}

};



/*

 * In order to use last 2kB of SRAM on 1611b, we must round the size

 * up to multiple of PAGE_SIZE. We cannot use ioremap for SRAM, as

 * clock init needs SRAM early.

 * Note that we cannot use ioremap for SRAM, as clock init needs SRAM early.

 */

void __init omap_map_sram(void)

{
@@ -185,8 +183,7 @@ void __init omap_map_sram(void) 
		omap_sram_io_desc[0].pfn = __phys_to_pfn(base);

	}



	omap_sram_io_desc[0].length = (omap_sram_size + PAGE_SIZE-1)/PAGE_SIZE;

	omap_sram_io_desc[0].length *= PAGE_SIZE;

	omap_sram_io_desc[0].length = 1024 * 1024;	/* Use section desc */

	iotable_init(omap_sram_io_desc, ARRAY_SIZE(omap_sram_io_desc));



	printk(KERN_INFO "SRAM: Mapped pa 0x%08lx to va 0x%08lx size: 0x%lx\n",